Can you permanently disable the PCS?

As the title states, I'm interested in permanently disabling the PCS. I tried unplugging the sensor in the bumper and that did make it safety out, but it also killed my airbags which I would like to keep. I guess that particular sensor is radar, as I tried covering it with cardboard and tape and it did not safety out the PCS.

Yes, I know holding down the traction control button will get rid of traction, VSC, PCS, and all that jazz. I'm looking for a solution that just disables the PCS, without having to do it every time I get in the truck.

Thanks in advance

 

maybe i'm not understanding, why do you feel the need to turn off the Pre Collision System? are you doing something that requires it to be off?

 

You're not missing anything, I just didn't include my reason. I want it off, and I can't figure out how.

Edit - if it's that crucial to answering the question, I want it off because it's overly sensitive, goes off for no reason and locks my brakes up when there are no obstacles to avoid. It has nearly caused one accident on the highway, has caused issues off road, and is just downright dangerous.

My truck has already been in the shop multiple times and I'm not trying to give it back to them to diagnose it to just go "huh that's weird" and give it back. I don't need nanny crap in the truck, I don't want it. I want it disabled.

So again, can it be disabled? Will a tech do it with techstream?

 

well, ok

did you try covering the camera that is behind the rearview mirror?

 

Lashing out at people here asking legitimate questions won't gain you any favors here with responses. Just a thought.

 

assuming you adjusted the sensitivity already, but if not, here is page from owners manual

 

I do not own a 2022, but with the Safety stuff in the previous gen you could block the sensors (camera behind mirror and the sensor behind the emblem) but that would disable more than just the PCS. It would disable cruise control, and I think other systems as well.

OP, closest I think anyone got to what you are asking was somebody built a harness that was nannies off all the time, but that sounds like more than what you are seeking. Also, just FYI, they do recommend you manually shut it off when off roading in the manuals, so it doesn't cause you troubles there.

You might be able to disable it with one of the tech tools like techstream or carista, but I've never delved into that stuff.

 

could stand to reason, that if you have any decals going across the windshield or a really dark tint strip, may cause it to malfunction as well, its pretty high up the glass there

 

i am merely giving suggestions sir

 

Same here. Don't be offended. I'm not a 2.5 gen owner that hates the 3rd gen. I believe there can be peace between all Tundra generations. I was just sharing how the system operated in the previous gen, and Toyota is usually a bit slow to completely change how these things work, so I imagine it would work they same. I could be wrong, though.

 

Try looking up the PCS system on the fuse board and pull the fuse for it.

 

Thank you. I did block the sensor behind the emblem, but I haven't tried the one in the mirror yet. I believe I will lose radar cruise if that happens, which isn't a big deal and I may end up doing. The harness to spoof the sensors and give me nannies off all the time is really what I was looking for. I will see if I can locate the thread for who made it and ask what their goals are for the 22 model.

A solution in TechStream would also be ideal but I imagine the dealer won't want to do it for safety reasons

 

on our 2018 plat, i have ours set to late, rarely does it go off and most of the time it just beeps like mad.

 

I should clarify, the "nannies off" harness was to disable traction control, VSC, etc. so people could hammer down and spin tires and such. Those were the nannies being targeted. I wasn't fully thinking when I had previously replied as I was just starting my day (night shift.)

 

Not a bad theory, but this thing was acting crazy from the day I got this truck. Sometimes it says PCS malfunction, clean sensors - yet, the sensors will be squeaky clean and it requires a reboot of the truck to go away.

And yesterday I went through the same spot in a field 4 times going east and it went off every time, yet, when i turned around and went west through the exact spot (in theory facing the same "obstacles") it never would activate.

One day I was going down the highway and someone was parallel parked 15 feet off the road, in a parking lot, well over the other side of the white line. I was pulling a trailer which was fully loaded and it activated and slammed on my brakes. This one was exceedingly dangerous and could have gotten someone hurt.

I know I can hit the button to turn it off every time I get in the truck but that's realistically not gonna happen

 

I fought it for almost 10 years. I finally couldn't help it any more, my 2013 was no longer "daily driver" material. I did keep it, though. And excepting road trips, I drive it just about as much as the new one. The nanny crap is UNBEARABLE in this truck. Not to mention the fact that it has been in the shop a total of 3 weeks since I bought it in December.


Edit: So far I have been able to disable the seat belt chimes. And, this truck SCREAMS at you if you get out of the seat while the truck is in neutral (I do it all the time on the farm, just jumping out to check something and getting back in) - I have successfully found the speaker behind the headlight that goes nuts on you, and unplugged that.

The next step is figuring out how to disable the parking brake engaging when you put the truck in gear with the door open. I think shorting out the door sensor will work. Who is asking for all this crap? Is it just so they can add more to the price of the truck?

 

For those of you keeping score at home, a 3" wide strip of black plastic from an antifreeze jug slides right between the windshield and the camera by the rearview mirror, can't be seen from outside of the truck, and disables the PCS. It also disables the radar cruise control, but, that is of no consequence.

Problem solved

 

From what I been told in the past is if you go to the dealer and sign a waver they can turn it off. How true this is I don't know but this is what I hear.

 

glad it worked out for you, maybe one day they will have a fix for ya

 

Actually, they don't add it to boost the price. The price goes up because it is added, but the people "asking for it" are the litigious blood suckers looking for a payday. Companies are sued all the time, and frequently for good reason, but then you have ridiculous cases that go before activist judges and ruin companies for the stupidity or intentional damages caused by users of their products. These safety nannies are there to provide a legal buffer for the manufacturer so some dipshit that hurts himself, intentionally or otherwise, cannot sue them into bankruptcy.

Some implementations are well intentioned. For example the parking brake with the door open could possibly be traced back to the death of Anton Yelchin. He was crushed to death when is vehicle (a jeep) slipped out of park and rolled forward pinning him to a wall/gate he was opening. If the vehicle automatically engaged the parking brake then he might not have been killed.



Not defending the nannies. Just trying to show a point of view you may not have considered.

 

I can just turn off my PCS from the MID on the dash. I don't understand the need for covering the sensors

I turned mine off awhile ago. I get a stupid light on the dash constantly that tells me it's off, but it's better than it slamming on the brakes constantly because I have a bike rack in my rear hitch and want to go in reverse.

 

gonna miss anton in the star trek movies, loved his accent in the movies and his character overall. better than his replacement.

 

I found trying to backup with a bike rack on, after the first auto-brake activation, shifting to neutral and then into reverse again allows you to backup freely.

 

Yea, it's not like it locks me in place and there is also a button by your left knee to disable the rear parking sensors for just such a scenario, but I don't find value in PCS anyways so I just disabled it entirely (Along with the parking sensors). I haven't hit anything in close to 20 years of daily driving so I don't think PCS and incessant beeping when close to things is gonna add anything but frustration to my life lol

 

Yup click the button that shows the car hitting a traffic cone. It will stop the auto braking, and then you can turn the sensor volume down manually. So now I get beeps, but no more braking.

 

You can turn the PCS off in the dash, but, every time you cycle the power it comes back on. You have to turn it off every time just like the stop-start feature. I wanted a permanent solution. This way it does tell me when I first turn the truck on that the PCS is disabled, but it only does it one time

 

i had my laptop with techstream hooked up to my truck the other day, one of the options under the customization was for the PCS, it had the option to "store the state" of the pcs every time the truck is turned on/off, so once you tell it to store it, and you turn it off, it will stay off until turned back on, not auto re enabled when the truck is turned on/off,

so in case you want to get rid of your piece of plastic covering the camera, it is possible to have the PCS turned off and stay off without its use

 

Just curious how does a vehicle just slip out of park? Seems like a bigger issue.

 

It was a big deal. There were other non fatal accidents and there was a recall for the issue. Sadly, Anton's recall letter was mailed 7 days after his death.